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[00:00.47]Unit 2 This little girl can't walk.                      
[00:06.34]Ò»¡¢Listen and number.ÌýÒ»Ìý£¬ÅÅÒ»ÅÅ¡£ 
[00:15.68]1.W: sit down   
[00:23.71]2.M: carry the bag                                  
[00:31.70]3.W: a kind boy                              
[00:39.73]4.M: ride a bike                                      
[00:47.33]5.W: carry a desk